Driving efficiency in cemented liner completions ///

Oil and gas producers have succeeded in boosting production from horizontal wells in unconventional reservoirs over the last decade. This is attributed to advances in directional drilling, longer laterals, and multi-stage stimulation techniques. Additionally, changes in completion strategy, such as tightening stage spacing, also has been beneficial. An engineering study in the Haynesville and Bossier shales shows a 22% production increase (4.5 to 5.5 Bcfg) per well, as average stage spacing between perforations dropped from 272 ft to 150 ft between 2011 and 2013. Completion designs also have trended toward higher fluid and proppant volumes.